Annotations: 4PXD

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2B Superfamily	Zn-dependent exopeptidases	8035110	3000662	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Bacterial exopeptidase dimerisation domain	8035111	3001194	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Zn-dependent exopeptidases	8035110	3000662	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Zn-dependent exopeptidases	8035110	3000662	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Zn-dependent exopeptidases	8035110	3000662	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Bacterial exopeptidase dimerisation domain	8035111	3001194	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	M20_dimer_1	e4pxdB1	A: a+b two layers	X: Alpha-beta plaits	H: Bacterial exopeptidase dimerisation domain (From Topology)	T: Bacterial exopeptidase dimerisation domain	F: M20_dimer_1	ECOD (1.6)
B	Peptidase_M28	e4pxdB2	A: a/b three-layered sandwiches	X: Phosphorylase/hydrolase-like	H: Zn-dependent exopeptidases (From Topology)	T: Zn-dependent exopeptidases	F: Peptidase_M28	ECOD (1.6)
A	M20_dimer_1	e4pxdA1	A: a+b two layers	X: Alpha-beta plaits	H: Bacterial exopeptidase dimerisation domain (From Topology)	T: Bacterial exopeptidase dimerisation domain	F: M20_dimer_1	ECOD (1.6)
A	Peptidase_M28	e4pxdA2	A: a/b three-layered sandwiches	X: Phosphorylase/hydrolase-like	H: Zn-dependent exopeptidases (From Topology)	T: Zn-dependent exopeptidases	F: Peptidase_M28	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.40.630.10	Alpha Beta	3-Layer(aba) Sandwich	Aminopeptidase	Zn peptidases	CATH (4.3.0)
B	3.30.70.360	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits		CATH (4.3.0)
A	3.40.630.10	Alpha Beta	3-Layer(aba) Sandwich	Aminopeptidase	Zn peptidases	CATH (4.3.0)
A	3.30.70.360	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF01546	Peptidase family M20/M25/M40 (Peptidase_M20)	Peptidase family M20/M25/M40	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Allantoate amidohydrolase	cation binding manganese ion binding transition metal ion binding ion binding binding metal ion binding small molecule binding identical protein binding protein binding protein homodimerization activity protein dimerization activity zinc ion binding allantoate deiminase activity hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds, in linear amidines cation binding manganese ion binding transition metal ion binding ion binding binding metal ion binding small molecule binding identical protein binding protein binding protein homodimerization activity protein dimerization activity zinc ion binding allantoate deiminase activity hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds, in linear amidines hydrolase activity catalytic activity hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds	allantoin metabolic process catabolic process amide catabolic process metabolic process cellular process amide metabolic process allantoin assimilation pathway allantoin catabolic process nucleobase-containing compound metabolic process purine nucleobase metabolic process nucleobase-containing small molecule metabolic process nucleobase metabolic process small molecule metabolic process primary metabolic process allantoin metabolic process catabolic process amide catabolic process metabolic process cellular process amide metabolic process allantoin assimilation pathway allantoin catabolic process nucleobase-containing compound metabolic process purine nucleobase metabolic process nucleobase-containing small molecule metabolic process nucleobase metabolic process small molecule metabolic process primary metabolic process purine-containing compound metabolic process	cellular anatomical structure intracellular anatomical structure cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR002933	Peptidase M20	Family
A, B	IPR010158	Amidase, carbamoylase-type	Family
A, B	IPR017591	Allantoate amidohydrolase	Family
A, B	IPR036264	Bacterial exopeptidase dimerisation domain	Homologous Superfamily

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.